Sithonia Day Trip From Chalkidiki Starting Price €30 By Keytours, Greece. Lets spend a day in the beautiful Sithonia, the second peninsula of Chalkidiki. Begin in the morning from Chalkidiki. Highlights: Enjoy a full day trip to Sithonia. Visit N. Marmaras. See the coast of the peninsula. Swim in clear crystal blu waters. Enjoy a delicious lunch to a traditional tavern. Inclusions: Transport by luxury bus. English speaking escort. All Taxes. Terms & Conditions: This offer is valid from now until 27th October, 2016.